In 2014, approximately 5.2 million people in the U.S. suffered from Alzheimer’s; a number that is expected to triple by 2050. In 2014, approximately 5.2 million people in the U.S. suffered from Alzheimer’s; a number that is expected to triple by 2050. Can Alzheimer’s be prevented?  Growing evidence suggests that diet and lifestyle can affect the brain and impact cognitive aging. Dr. Karen Unger joins Dr. Friedman to share information contained in her new book, Brain Health for Life.   Unger shares how foods affect your brain, as well as how exercise and simple lifestyle changes can protect your cognitive functioning.